Bicycle



FIG. 1 is a left side view of an embodiment of a bicycle showing our new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is bottom view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a perspective thereof.

The broken line showing of brake levers and chain rings is for the purpose of illustrating portions of the bicycle that forms no part of the claimed design. 

CLAIM The ornamental design for a bicycle, as shown and described. 